Belt-shifter for coal-jiggers.



u M. CLARKE.

BELT SHN-'TER FOR COAL UGGERS.

APPLICATION FILED MAR. 16. 1915.

Patented Dee. 7, 1915.

4 SHEETS--SHEET 4, ttowm a COLUMBIA PLANUGRAPH CD., WASHINGTON. D. c.

M. CLARKE.

BELT SHIFTER FOR COAL JIGGERS.

APPLICATION FILED MAR. I6. I9I5.

11,163,216. Pat'ented Dec. 7, 1915.

4 SHEETS-SHEET 2.

COLUMBIA PLANDGRAPH co., WASMINUTDN. u. C,

M. CLARKE.

BELT SHIFTER FOR COAL JIGGERS.

APPLICATION FILED MAR. I6, 1915.

1,163,216 Patented Dec. 7, 1915.

4 SHEETS-SHEET v3.

Snow/tow aq ZVEe O WMe/.smo

wLUMBlA PLANDGRAPN C0.. WAsHINcnoN. D. c.

M. CLARKE.

BELT SHIFTER FOR COAL JIGGRS.

APPLICATION FILED MAR. I5. 1915.

1,163.216, Patented me. 7, 1915.

4 SHEETS-SHEET 4.

COLUMBIA PLANOGRAPH 0..\v^sI-1|NGTON. D.c.

MATTHEW CLARKE, on 'WILKns-isnnnn PENNSYLVANIA. y

` Y ianLT-siiifitiiiin `non l coeiiirieenns.

Llei-Leiay To all leti/icm t "may concern."

f nal oi" lateral movement in the chiite proper. f

Be it known that l, MATTHEW Cnginnii, `a citizen oi the United States,'residing at "Wilkes-Barre, 'in the county 'of Luzerne and State ofAPennsylvania, have invented certain n'ey'v and useful Iliiipjrovements,in

Belt-Shifters for Coa`l-'liggers`, oii'fivhich the iolloilving is aspecification. Y Y n My invention relates to new and u'seituliliii'proveineiits in controlling iiiechanismsfor 'controlling supply ofpoiver lto any machine by mechanism operated by the feeding of materialin bulk *to such machine, the primary object :of my inventionconsisting' ink Athe provision ci a belt shifting device which `Will beautomatically operated yby the :paso "safge of the bulk material beingfed to a' inachine or by the cuttingr oli of s'iipply of such material"to such machine.

llore, specillcally, my invention is intended for usein connection 'withycoaljigs and breakers, my intention being to prorh vide a mechanismWhich shall automatically cut 'supply 'of poiver to the jig Whencoal isvno longer fed thereto. K N in this "connection, a still further objectof my invention consists in the interposition ci' a hinged chute memberin the main supply Achiite leading to tlieyjig, the parts of [suchinember beingdepressiole iinder weight ot coal passing therethrough toactupon a rock sliait or kother 'equiva- .lent mechanismto shift 'thedrive belt of the Y e. still fiirtherfobject of my invention conin theprovision oit means for holding the hinged chute member againstlongitudij-ind a still further object ol my invention consists in theproyision of means for automatically shifting the belt to ciit oil'supply oir poivei' to the jig upon movement of the hinfged chute 'member`in one direction.

lilith thesel and other objects in vie\v,-my

invention ifiill be more fullyv described, illus,- ti'ated iii theaccompanying drawings, and then specifically pointed out intheclainiswhich are attached to and form apart of this application.

ln the drawings: Figiireflisa side elevational `View of in v improveddevice, the main chute and hingcdchiite member being' shown inlongitudinal section; Fig. "2 a front elei national yieiy of themechanism lsliownin Fig. l; Fig'. 3 is a 'detailcross sectional .viewillustrating certain details in the mounting 'olf the l'iingedchiitemember; Fig. 4 is a per- 'spectiveyieivfof a njiodi'fied 'foi-in o'ffinyiiivention; Fig'. -5 is a longitudinal View taken 'tl'iroufgh the chuteprovided with the hinged chiite v'ineniber, illustrating certain detailsnot clearlyshown inFi'g. l. f

Corresponding kand `like parts are referred to in the' followingdescription andjindicated' in all the yieivs ot the 1drawings, by thesame reference characters.

Myimproved vbelt "shitting mechanism is supported suitable frame I0Which A may include longitudinal siiigmenibei-s ii properly braced bytransverse sill "members 12 and provided fadgacent one fend Iwithalinedrbearings 13 to' Vreceive rthe driveshaift ,f

lll of the jigor `other machine tofbe 'controlled, such 4inachinle notbeing illustrated'l 'eicept for `this drive fs'l'iafI-t.` This driveshait provided with a fast pulley l5 and .loose pulley 16 rand a belt 17is Ashiitable lrom "one Ato the Vother of these' pulleys, being'"trained ab'oifit one of them and about a ypulley '18 carried bya shaft19. This (shaft is "preter- 'ably joiiiiialed ini bearings y20 carriedby the upper fe'ii'd'sof spaced uprights 2l supported by the vside sills'of the frame and iisually braced at their yupper ends by across brace22. As Will be understood, 'the shaft 1'9 constitutes rthe Ldrive shaftand may he driven eitherV by an internal combustion engine", electricmotor, steam tengine or 'other suitable source of energy, "my inventioncony 4sistting' intheprcvisioi'i Vof means foi' 'auto niatijc'allyshifting rthe belt 17 from the loose pulleyl to the tiXedpulley or theieverse i The coal or other loose material `vvliieh i"s fed in biill; tothe jig 'or similar machine of similar naturapasses 'through a chute23,

the lower end of y'vliich eXtends between the side `sills ll of theframe and above the jig or other equivalent machine 'in properf positiontodischarlgie any inaterinl'ypassing through it to such machine. Thischute is i'eferabl rectiiribiilar in cross'sectioinb'en D f l, f

at its top and formed of Woodv or yany other Suitable miami. if fencedof weee, a is f generally, provided vivitli a metallic in oi'dei" topifeveiit untliie n'eaigtliis lining'`r bei'np; usiiallyoiinedin'seetions iii the mannei' shfoivn in l. l' Supported iiiintermediate portion fof thievr kchutefaild entend acrossy l the Aentirethereof, ,a

i ie

cluding the parts" 26 and 27, each equal in width tothe width of thechute proper and having sidewalls iitting closely against the innerfaces of the side walls of the chute proper, such portions being openatY both ends and at the top. These portions rivets or otherk suitablefastening devicesy to the side walls of the kchute portion with adepending flangey projectingslightly over the lower end of the chute,this tlange,.ex cept for that portion of the brace extending across thetop of the chute `portion,jis cut away, vwhile the remaining portion ofthe angle iron extends ka slight distance below the bottom ofthe kchuteportion to provide an eye 29 at-either side of the chute portion.

The-upper or adjacent end ofthe chute yportion 27 has itsbottoincut-away as at 30 to receive the bottom portion ofthe first chutemember section, the side walls of which, at such end, bear snuglyagainst the outer facesofthe side walls ofy the section 26.

In cutting .away the bottom portion of they section 27, tongues 31 areformed which are bent-to provide eyes in alinenient with the eyes 29 inorder that a hinge pin 32 may be passed through the alined eyes tohingedly connect the sections together. f The ends'of the hinge pin areextended beyond the side walls of the yhinged chute member to seat invertical slots 33 formed in the side walls of the chute proper, theseslots, at their upper ends, being closed by stop plates 34 in order topreventy complete displacement of the hinge pin from the chute proper.

Spaced vertical uprights are secured to one of the side sills 1l of theframe, one of i y is constantly driven, and that in normal theseuprights being located beyond the lower end of the chute andstrengthened by a diagonal brace 36. The upper ends of these uprightscarry bearings 37 to receive a rock shaft 38 and this rock shaft isprovided at one end with a radially directed arm 39 terminating in afork 40 through the sides of which is passed a pin 41 secured by aCotter pin 42. Y This pin also passes through a terminal link of a chain43, the otherend of `which Yis connected to .an eye-bolt 44 carried-bythe angle iron brace 28.V :It will therefore be. seen that rocking ofthe shaft 38 in one direction will raise the adjacent end portions 'ofthe sections ofthe hinged chute member in the manner showny in Fig. il,ywhile pressure upon such portions of they chute member will causerocking of the shaft 88 in the oppositedirection. A second radiallyextending arm45 projects from the in.

termediateportion of the rock shaft 38 and terminates in an-eye 46 toreceive one end of a link 47, the free end of which supports l5, therebysetting thejig in motion.

a c'ounterweight 48.' An upright 49, also carried by the sill il of theframe, serves as a stop to limit downward swinging of they arm 45 underthe influence of the weight 48.

This weight should be just heavy enough to raise the adjacent ends ofthe sections of rthe hinged chute member when no coaly or other materialis passing through the chute,

but not heavy enoughto prevent depression Vof suoli ends toy theirlowermost position during passage of coal or other material through thechute. rilhe rock shaft 50 'which normally extends vertically from theshaft, terminating in a fork 5l, the sides of which receive a pin 52which 'also passes `through one end of a link v58, the

' pivot pin `52 being locked by a Cotter pin 54.

rllhe free end of the link 53 is pivotally con-l nected to one Yend ofa'lever 55 and a pivot pin 56 is passed through the sides ofa' fork 57of a diagonally extending brace ,58 rand through the intermediateportion of the lever .54' tor'pivotally support such lever. The braccr58is preferably supportedby an yadditional brace member 59 in the mannershown kin Fig. 2. rrihe lower end of the le ver 55 projects into closeproximityy to the upper stretch of the belt llvandis provided with across vhead 60. Extending from ther end portions of the cross head 60and in parallel relation toeach other yand tothe lever 55, are shafts6l, each yof which carries a roller the rollers being adapted to receivethe yupper stretch of the'belt between ,f

position, the belt l? is upon the idler pulley 16 of the jig shaft "i4,it will bey clearthat as soon as coal or other material is fed throughthe chute 24, said coal passing through the 38 'also carries a thirdradially extending arm ics hinged chute member 25 will depress the yintermediate portion of suoli memberV and cause turning of the rockshaft against the action of the counterweight 48. Thisrturning movementof the rock shaft-.is su'liicient to act through thexradial arm 50, link58 and belt shipper lever 55 to swing the belt from the loose pulley 16to the fixed puly n the Vother hand, as soon as coal stops passingthrough the chute, the counterweight'will reverselyV turn the shaft andcause the shipper leverto shift the belt 17 back tothe loose pulleyyandV socut olf lthe supply of power tothe'jig, the rollers 62, at alltimes, preventing injury to the belt. i

lt will'ofcourse be understood that varionsr changes may be made in myinvention ana that by` ai@ lunison of further "me shafts 'or of addedarms to ,the rock shaft shown, the device maybe made tosimultaneouslyshft any desired numberof belts wabout a machine orabout anumber of mabranch chutes may be utilized to control the motive power of`alljigs or other separators into which the branch `chutes discharge.

llor instance, in Figs. 4 and 5 l have illustrated a somewhat modifiedform of vinvention in which the discharge oficoal or othermaterialthrough one chute controls the belt lShifters of two jigs. Vlnthis form of my invention l provide a platform 62 having spaced cut-awayportions 63 and 64 through which thecoal or other material may passfromthe inclined chutes 65 andv66, respectively, to jigs, not shown.Located within the chute 65, is the hinged chute member 67,corresponding to the hinged chute member 25 `previously described, withthe exception that the upper Yendof the'upper hinged` chute member hasits free end downturned topform an eye 68 to receive a hinge pin 69 yextending transverselyrof the chute 65 toy hold the hinged chute memberagainst longitudinal movement, the'walls of the chute proper 65 notbeing slotted for the hinge The 1 pin ofthe hinged chute member` Ytransverse brace 70, corresponding to the brace 28, has its flange 71directed upwardly instead of downwardly and a link 72 has a bifurcatedendto straddle this flange, the link being pivotally connected to theflange by an eye bolt 74 and nut 75.y The upper end of this link 72 isalso bifurcated to receive one end of a crank arm 76 carried by a rockshaft 77 which 1s gournaled 1n allned bearings 78. These bearings arecarried one by a frame 79y including spaced sidev frame members 80 andtransverse frame members 81 and 82 and the other by a frame 83 including`spaced side frame members 84 and a transverse frame member 85.

A chain 86 is connected to theeye bolt74 y Aat one end and at its otherend to a lever 87 pivoted upon the lower transverse brace 82 of theframe 79. Theopposite end of thisk .lever is provided with a series ofperfora-` tions 88 to selectively receive ahook 89 which in turnsupports a counterweight 90. y

This counterweight is of such weight as to hold the hingedly connectedends of the hinged chute member 67 in raised position, except when `coalor other material is passing through the chute and the effectiveness ofthe weightmay be varied yto adapt it for -use with different material byvarying the effective length of the lever arm 87 by shifting the hook 89to one or the other of the perforations 88. y l y The crank shaft 7 7 atits forward end, is provided witha second crankv arm 91 having shiftinga bifurcated upper end to receiveoneend of a link 92, the opposite endofv which is provided witha plurality of perforationsy 98 to receive apivot pin 94 bywhich the link is pivotally connected between the forkedterminal of a belt shifting lever 94, which lever is pivotedintermediate its length to a bracket 96 vdepending fromgthe.transversebrace of the frame member 88. The lower end of the beltr shiftingleveris forked, as shown at 97,l to straddle a shaft 98, vbeing connectedtothisv shaft by a pin 99 in such a vmanner that the shaftmay bereciprocated through swinging of the lever 95. This shaft is `mountedfor reciprocation in slots 100 formed inthe end members 84 of the frame88 and is supported `in Such slots upon grooved rollers 101 positionedinsov the slots and rotatable upon'shafts 102 j oury ends, alinedbearings`104 for the power shaft l 105, which shaft carries'the spacedpulleys 106 and 107. `Alined bearings 108 carried by supports 109Vmounted upon the platform 62, journal .the shaft 110 which is parallelto the shaft' 105 and which carries a loosel pulley 111 and fixed pulley112 for coperf ation vwith a belt 113 trained about .the pulley 106 andloose' pulley 114 and fixed pul-V ley 115 rfor. coperation with a belt116 trained about ythe pulley 107. This shaft 110, as will beunderstood, is to vdrive the mechanism ofy both jigs. The shaft 98,whichis alsov parallel to the shaft 110, and which, as a rule, extendsbetween the upper and lower stretches of the belts' 113 andv 116,carries collars 117 and 118 each provided with a cross head 119 carryingspaced pins 120 to which are attached rollers 121 `adapted to engage oneupon either side of one of the belts 118 or 116. These collars are heldin place upon the shaft by pins'or bolts 122 and `the shaft ispreferably provided with severalpin orboltreceiving openings 123 inorder to permit proper adjustment of the collars and for an additionalreason, which will be later explained. y

From k,the foregoing description, particularly when consideredinconnection with the koperation `of my previously described form ofbelt shifter, the operation of the modified form will be readilyunderstood. rllhe depression of the'hinged chute member from thekposition .shown in Figs. 4 and 5 will act through the rocksllaft 77,link 92 and belt lever 95 to reciprocate the belt shifting shaft 98 `andshift the belts from the loose pulleys 111 and` 114 to the fixed pulleys112 fand 115, respectively, thereby causing a driving ofthe shaft 110.

` VUn the',k other hand, return of the hinged chute membe ythusdisengaged from the belt and se-y Si t7k cured upon the shaftl 98 insuoli a position ber to elevated positioinfupon stoppage of iloivof coalor other material, will reverse themovement of ythe belt shifting shaft98 and return the belts 113 and 116 to the idler pulleys. lf but one ofthe tivo chutes is to be employed, the collar 'ofthe belt shifting forliof the otherb chute may be loosened by removing its set screiiT andsuchy fork may as not to engage its belt during any` shifting movementrof the'shaft 98. Because of this arrangement, the hinged chute membermay, if desired, be rendered yinactive and both jigs be drivenirrespective of any supply of material to either chiite.

ln view of the various forms of my invention, above described, it Willbe clear that l do not Wish to limit myself to the exact features ofconstruction illustrated, as various minor changes,^within the scope ofthe appended claims, may be made at any time,

yWithout in the slightest degree departing from the spirit of myinvention.

laving thus described ythe invention, what" is claimed as new is:`

Y 1. ln a belt shifting mechanism, the combination with adj acent'pulleys and a belt' `shift-able from one to the other, of a Lchute,

means adapted when vactuated'to shift the belt from one pulley to theother, and

means in the chute depressible under ther ously shifting the belt to theoriginal pulley.

3. In a belt shifting mechanism, thev combination with adjacent pulleysand a belt shiftable from one to the other, of a chute includinghingedly connected sections through which material is ladapted to pass,

means for normally holdingy the connected n ends of such sections at anelevation, said means permitting the Vconnected ends to move` downwardunder Weight of material passing through the chute, and means foperableby such holding means for shifting the belt from one pulley to the otherupon raisf ing and lowering of the connected ends of the chute. n

lna belt shifting mechanism, the combination With adjacent pulleys Vanda belt shiftable from one to the other, of a shipper lever engaging thebelt, a rock-shaft, operative connection between ythe rook shaft yto thejig, I y `sage of material through the chute for auand sliipperlevei",achute, and means kconltrolled by discharge of material through the"chutefor actuating the roch shaft.'

' 5. Lln a belt shiftingrk mechanism, the combination'ivith a jig shaft,adjacent pulleys, one i'ixed and one loose upony the shaft, vadrive'belt shiftable from oneY pulley to the other and a chute forsupplying material to izo c the jig,kof means governed by the passage ofmaterial through the chute for automatiu cally shifting the belt.

6. ln a belty shifting mechanism, the comy bination with a jig shaft,adjacent'r pulleys,

one fixed and one loose upon the shaft, a drive belt shiftable fromonepulley to the other and a chute forsupplyingl material to the jig, ofmeans governed by the passage `of material through the rchuteforautomatically shifting the belt, said means being operable 'whenmaterial passes through f the chute to shift the belt onto the linedpulley.

7.k ln a belt-'shifting mechanism, the combination with a jig shaft,adjacent pulleys, oneliied and one loose upon the shaft, a drivefbeltshiftable fromone pulley to the other and a chiite for supplyingmaterial of means governed bythe pas tomatically shifting the belt,.saidmeans in'- cludingsupplemental chiite members having overlappingadjacent ends, a pintle Vpin hingedly connecting said overlapping endsand movable in slots in the sides ofL the rst rock shaft, connectionbetween suoli arm and the hingedly connected end of one of thesupplemental chute sections, a second arm carried by the shaft, ashipper lever pivotally mounted intermediate its length and op- Yeratively engaging" the belt,r and connecting means between the'secondarm and shipper lever.

S. ln a belt shifting mechanism, the combination with a jig shaft,adjacent pulleys, one lined and one loose upon the shaft, a kdrive beltshiftable from one pulley to the other and a chute for supplyingmaterial to the jig, of means governed by the passage of materialthrough the chute for automatically shifting the belt, said: meansincluding supplemental chute members having overlapping"adjacent ends, apintle pin hingedly connecting said overlapping ends and movable inslots in the sides of the lirst chute, a rock shaft, an arm carried bythe rock shaft, connection between such arm and the'liingedly connectedend of one of the supplemental chute sections, a second arm carried rbythe shaft, a shipper lever pivotally mountedL intermediate its lengthyand operativeiyr engaging vthe belt, connecting means betiveenthe secondarm and shipper lever, yand meansoperatively connected to the rocl shaftfor normally holding the hingedly con Aec'ted endsof the supplementalchiite, a rock shaft, an arm carried by the iio chute sections in raisedposition, suchende being depressible under Weight of material passingthrough the chute.

9. ln a belt shifting mechanism, the coinbination with a shaft, adjacentpulleys, one fixed and one loose upon the shaft, a drive belt shiftablefrom one pulley to the other and a chute for supplying material to thejig, of means governed by the passage of material through the chute forautomatically shifting the belt to the fixed pulley when material passesthrough the chute and to the idler pulley when no material passes, saidmeans including a supplemental chute member depressible under Weight ofmaterial passing through it, a reciprocally mounted shaft having a beltshifting member engageable with the belt, and means connected to thedepressible chute member for reciprocating the shaft.

l0. ln a belt shifting mechanism, the conibination with a shaft,adjacent pulleys, one fixed and one loose upon the shaft, a drive beltshiftable from one pulley to the other and a chute for supplyingmaterial t0 the jig, of means governed by the passage of materialthrough the chute for automatically shifting the belt to the fixedypulley when material passes through the chute and to the idler pulleywhen no material passes, said means including a supplemental chutemember depressible under Weight of material passing through it, areeiprocally mounted shaft having a belt shifting member engageable withthe belt, and means connected to the depressible chute member forreciprocating the shaft, said means inn cluding a lever pivotedintermediate its length and engaging the reciprocating shaft toreciprocate it when swung,y a rock shaft, crank arms carried by the rockshaft, and links connecting one crank arm with thedepressible chutemember and the other crank arm With the shaft reciprocating lever.

ll. In a belt shifting mechanism, the combination With a jig shaft,adjacent pulleys, one fixed and one loose uponthe shaft, a drive beltshiftable from one pulley to the other anda chute for supplying materialto the jig, of means governed by the passage of material through thechute for automatically shifting the belt to the fixed pulley Whenmaterial passes through the chute and to the idler pulley when nomaterial passes, said means including a supplemental chute memberdepressible under weight of material passing through it, a reciprocallymounted shaft having a belt shifting member engageable with the belt,and means connected to the depressible chute member for reciprocatingthe shaft, said means including a lever pivoted intermediate its lengthand engaging the reciprocating shaft to reciprocate it when swung, arock shaft, crank arms carried by the rock shaft, links connecting onecrank arm Withthe depressible chute member and the other crank arm withthe shaft reciprocating lever, and roll-V ers forming a support for thereciprocating shaft.

l2. In a belt shifting mechanism, the combination with a jig shaft,adjacent pulleys, one fixed and one loose upon the shaft, a drive beltshiftable from one pulley to the other and a chute for supplyingmaterial to the jig, of means governed by the pas sage of materialthrough the chute for automatically shifting the belt to the fixedpulley ivhen material passes through the chute and to thev idler pulleywhen no material passes, said means including a supplemental chutemember depressible under Weight of material passing through it, areciprocally mounted shaft having a belt shifting member engageable withthe belt, and means connected to the depressible chute member forreciprocating the shaft, said means including a lever pivotedintermediate its lengthy and engaging the reciprocating shaft toreciprocate it when swung, a rock shaft, crank arms carried by the rockshaft, links connecting one crank arm with the depressible chute kmemberand the other crank arm With the shaft reciprocating lever, rollersforming a support for the reciprocating shaft, a lever operativelyconnected to the depressible chute member, and a countervveiglitadjustably mounted upon the lever to raise the chute member when nomaterial is passing through it.

ln testimony whereof ll aiiiX my signature in presence of tivoWitnesses.

l MATTHEV CLLRKE. [1.. s] Witnessesz JOHN M. JONES, JOHN VVEISENBORN.

Copies of this patent may be obtained for five cents. each, byaddressing the Commissioner of Patents, Washington, ZD. C.

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